Hoisting device.



PATENTED DEC. 12, 1905.

P. A. GOULD & G..R. WATSON.

HOISTING DEVICE.

APPLICATION FILED JUNE 8,1905.

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,3 Liv iii! Iii 3 IIQE- a 1 L I lll fi WITNESSES: 27 o 0 v l) uvvgog s Mv ere 40 o w Georgi Z3. 252 5021 UNITED STATES PATENT OFFICE.

PERLEY A. GOULD AND GEORGE E. WATSON, OF SARANAC LAKE, NEW

YORK; SAID WATSON ASSIGNOR TO SAID GOULD.

HOISTING DEVICE.

Specification of Letters Patent.

Patented Dec. 12, 1905.

Application filed June 8, 1905- Serial No. 264,272-

To all whom it may concern:

Be it known that we, PERLEY A. GOULD and GEORGE R. WATsoN, citizens ofthe United States, and residents of Saranac Lake, in the county ofFranklin and State of New York, have invented a new and ImprovedHoisting Device, of which the following is a full, clear, andexact'description.

This invention relates to a device for facilitatin the raising of heavywei hts. It is especia ly useful in lifting transformers to attach themto electric-light poles.

The object of the invention is to produce a device of the classdescribed which is simple in construction and which may be readily setup temporarily upon an electric-light pole for the purpose suggested.

A further object isto so construct the device that it readily adaptsitself to the construction work at the top of an electric-light pole,enabling the device to bereadily applied to poles of different kinds orhaving cross-arms difierently arranged.

The invention consists in the construction and combination of parts tobe more fully described hereinafter and definitely set forth in theclaims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which simlar reference characters designatesimilar parts in all the views.

Figure 1 is apers ective showing theupper end of a pole to which ourdevice is represented as applied. The illustration shows the transformerin the act of being lifted into position. Fig. 2 is a vertical sectiontaken at right angles to the cross-arms and illustrating a modified formof the device, which is used under certain circumstances; and Fig. 3 isa plan showing in detail a clamp which constitutes a feature of theinvention.

Referring more particularly to the parts, and especially to Flg. 1, 1represents the up per extremity of an electric-light pole, having across-arm 2 of common form attached thereto as shown. The lifting devicecomprises an A-frame 3, having oppositely-disposed converging legs 4,connected by transverse cross-bars 5. These legs at their lowerextremities are formed into feet 5, having downwardly-turned toes 6,which are adapted to engage the sides of the cross-arm 2, as indicated.Between the upper extremities of the legs 4 a beam 7 is rigidlyattached,

the said beam projecting at the front to form a head 8, and this head isformed with an eye 9 to facilitate the attachment of a block and tackle10. The rear extremity of the beam 7 is supported upon and rigidlyattached to a stanchion 11, which is dis osed in a vertical position, asshown. Whi e the body of the stanchion 11 is of round form, as shown,its lower extremity is drawn out to a fiat form, as shown, and thisflattened portion is bent outwardly so as to form a bracket 12, saidbracket presenting horizontal extensions 13 and a vertical extension 14.The bracket 12 terminates below in avertical extension or foot 15, whichis adapted to be rigidly attached to the side of the pole by suitablefastening devices 16, as indicated in Fig. 1. Another fastening. device17 is preferably applied to the upper portion of the bracket and at thefoot or flattened portion of the stanchion. Upon the side of thestanchion 11 which is remote from the pole a brace or tie-bar 18 isarranged. This brace is attached integrally to the upper extremity ofthe stanchion-and inclines downwardly and outwardly therefrom, the lowerextremity of the said tie-bar terminating in an eye 19, near which thesame is braced by a transverse bar or stud 20, which is formed,preferably, integrally with the stanchion and brace, as will be readilyunderstood. In the eye 19 a turnbuckle 21 is attached, the lowerextremity whereof engages the threaded extremity of an anchorbolt 22.This bolt 22 has a substantially vertical shank and a bent lowerextremity 23,

said lower extremity being formed with an eye 24, which is received overan anchorhook 25, said anchor-hook being rigidly attached to said foot15. From this arrangement evidently the tensile strains in the stanchionand the brace may be readily taken up. i

In order to increase the rigidity of the upper portion of the structure,we provide braces 26, consisting of flat bars, the forward extremitiesof which attach to the legs 4 of the A-frame and the upper extremitiesof which attach to the beam 7 near the rear end thereof. This form ofthe device is applied in practice, as indicated in Fig. 1, the foot 5"resting upon the cross-arm 2. It should be understood that this form ofthe device is intended for raising a transformer to a substantiallycentral position on the cross-arm.

The transformer 27 is preferably supported with a suitable sling 28 fromthe tackle and is raised in the usual manner by means of a cable 29,leading from the tackle. The transformer is provided with hangers 30,formed with hooks 31 at their upper extremities, the said hooks beingadapted to en age the upper face of the cross-arm, as will be readilyunderstood.

It should be understood that after the transformer is raised and securedin position the lifting device will be removed and lowered to theground.

The object in forming the bracket 12 at the foot of the stanchion 11 isto adapt the device to be used on poles which have crossarms disposed onopposite sides thereof. It will be seen that the bracket presents anopening or recess to receive the cross-arm which would lie opposite tothe cross-arm expected to support the transformer.

Where the device is to be used to raise the transformer to a point onthe cross arm which is not central, but removed from the pole, weconstruct the device as illustrated in Fig. 2. In this instance theA-frame 32 of the device is the same as that described above, andlikewise as to the bracket 33 and its contiguous parts at the base of astanchion 34. The A -frame is formed below with feet 35 also asdescribed above in connection with the frame shown in Fig. 1. Weprovide, however, an additional bracket 36, which enables the device tobe attached to the cross-arms 37 and 38 without any at tachment beingmade to the pole 39. The body of this bracket 36 consists of avertically-disposed fiat bar 40, which rests against the inner faces ofthe cross-arms 37 and 38, as shown. At its upper extremity this bar isbent laterally and extends toward the bracket 33, being provided with afoot 41, which attaches to the bracket by a bolt 42, as indicated. At anintermediate point upon the bar 40 braces 43' and 44 are arranged whichattach to the bar and to the inner face of a foot extension 45 of thebracket 33. At a suitable point the bar 40 is provided with a fixedclamp 46, which engages the under face of the cross-arm 37, as shown,said clamp comprising a wing-nut 47, which enables it to be readilysecured in position. Near the lower extremity of the bar 40 a clamp 48is provided, which engages the upper face of the cross-arm 38. Theconstruction of this clamp is clearly shown in Fig. 3. Near its innerextremity it is formed with an opening 49, enabling it to slide upon thebar 40, rendering it adj us'table thereupon, as will be readilyunderstood, by reason of a thumb screw 50. With this arrangement the bar40 may evidently be rigidly attached to any poll having a pair ofcross-arms one above the other on the same side of the pole. The footextension 41 and the braces 43 and 44 afford means for rigidly attachingthe bracket 36 to the bracket 33, and in this way the strains in thestanchion and rear portion of the superstructure are provided for.Attention is called to the form of the bracket 33, which is is similarto that of the bracket 12, described above. Evidently if there were across-arm opposite the arm 37 on the pole and at the same height thisarm would be received in the bracket and would in no way operate toprevent the device from being set up in position. The bolts 42 and 51,which connect the bracket 36 with the bracket 33, would be removable, sothat the same superstructure could be used with either form of thedevice described.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent- 1. A hoisting device, comprising a framepresenting feet adapted to seat upon a horizontal arm, a beam attachedto the upper extremity of said frame, a stanchion attached to the saidbeam and extending substantially vertically downwardly therefrom, meansfor supporting a weight from the forward extremity of said beam beyondsaid frame, and means for fixing the lower extremity of said stanchion.

2. In a device of the class described, in combination, an A framepresenting feet adapted to seat upon a horizontal arm, a beam to whichthe upper extremity of said frame attaches, a stanchion attached to therear extremity of said beam and having a bracket formed at the lowerextremity thereof adapted to be fixed to a support, a tiebar on the sideof said stanchion removed from said frame, and means for anchoring saidtiebar to said bracket.

3. In a device of the class described, in combination, an A-frame havingfeet formed at the lower extremity thereof adapted to seat upon across-arm, a beam attached to the upper extremity of said A-frame andprojecting therebeyond to constitute a support for a block and tackle, asubstantially vertically-disposed stanchion supporting the rearextremity of said beam and having a bracket formed at the lowerextremity thereof adapted to be fixed to a support, a tiebar attached tothe side of said stanchion remote from said A-frame, means for anchoringsaid tiebar to said bracket, and diagonal braces connecting said A-framewith said beam.

4. A lifting device adapted to be set up upon an electric-light pole andpresenting a structure having feet adapted to seat on a cross-arm of thepole, said structure including a bracket offset so as to present a spaceadapted to receive a cross-arm opposite to said first-named cross-arm.

5. In a device of the class described, in combination, a framepresenting feet adapted to rest upon a horizontal arm, a beam sup- Iported by said frame, a stanchion extending names to this specificationin the presence of downwardly from said beam and terminating twosubscribing Witnesses.

below in a bracket, and a second bracket at- PERLEY A. GOULD.

tached to said first-named bracket and hav- GEORGE R. WATSON. 5 ingclamps adapted to attach to horizontal Witnesses:

arms. A. K. BoTsFoRD,

In testimony whereof we have signed our MAUDE E. JACKSON.

